ge 射线机说明书手册

5-2-5-2 AEC密度补偿密度范围是从-2到+2。

AEC打开时，将自动选择正常的密度。

增加密度补偿按下此按钮，密度补偿值增加1。

选择+1，密度将增加26%。

选择+2，密度将增加52%。

减少密度补偿按下此按钮，密度补偿值减少1。

选择-1，密度将减少26%。

选择-2，密度将减少52%。

5-2-6 APR操作5-2-6-1 介绍操作员可以使用APR功能，进行放射应用参数的编制。

参见插图5-5，可以为一项特定的检查将来所有的放射参数以协议的形式纪录下来。

APR特征如下：°§ kV, mAs, mA, mSec· 体位（PA前后，LAT侧面，OBL倾斜）· 接收器· 身体类型（小，中，大）· 焦点（大，小）· 电离室区域· 黑化度玲龙 XR 6000系统上总共可以编制270个协议。

出厂设置会给出主要的APR协议，其余APR协议为0kV，0mA，0mSec，无AEC和大焦点。

如果用户选择0值APR，则系统显示错误代码，且系统抑止指示灯闪烁。

如果用户调节0值技术参数，则系统自动跳至此技术参数的最低值，并从此点开始调节。

如果用户改变任何默认值（如kV，mA，mSec，或电离室区域），LCD显示器上的曝光部位图标将闪烁，这意味着用户将应用自定义的非APR协议进行曝光。

5-2-6-2 APR选择插图5-5APR选择体位体型曝光部位选择体位按此按钮共有3个体位可供选择，并按照AP/PA、侧面、倾斜顺序循环选择。

AP按钮用于AP或PA。

LAT按钮用于侧面。

OBL按钮用于倾斜。

身体类型按此按钮共有3种体型可供选择，并按照偏胖或大个子患者、中等身材患者、偏瘦或小个子患者的顺序循环选择。

此按钮为偏胖或大个子患者。

此按钮为中等身材患者。

此按钮为偏瘦或小个子患者。

身体曝光部位选择共有10个身体曝光部位可供用户选择。

每一个按钮都可以编制到具有不同的预先设置协议上。

A ,Inspector 射线仪用户手册一、导言”Inspector”射线仪是用于健康和安全方面的仪器, 测量低水平的辐射。

它测量α、β、γ和x射线。

应用领域包括:1、探测和测量表面污染2、在接近放射性核素的地方, 监测可能的辐射量3、评估环境污染4、探测稀有气体和其它低能量放射性核素Inspector alert 具体参数Inspector Alert多功能射线检测仪技术参数1、探测器: 卤素淬灭剂GM管, 有效直径45mm, 云母窗密度1.5-2.0 mg/cm32、测量范围: mR/hr(毫伦/小时): 0.001—110.0,CPM( 每分钟计数) : 0—300,000μSv/hr(微希伏/小时): 0.01—1,100,CPS( 每秒钟计数) : 0—5,000,总计数: 1—9,999,0003、效率: Sr-90(546kev,2.3MeV βmax)约75%C-14(156kev βmax)约11%Bi-210(1.2MeV βmax)约64%Am-241(5.5MeV α)约36%4、灵敏度: 3500CPM/ mR/hr( 对于Cs-137)5、精度: ±15%6、温度范围: -10℃---+50℃7、电源: 1节9V碱性电池, 电池寿命 200小时8、尺寸重量: 150×80×30mm 350克( 含电池)二、”Inspector”如何测量辐射”Inspector”用一支盖革管-弥勒计数管来探测辐射。

每次当辐射经过盖革管时, 盖革管产生一个脉冲电流并引起电离。

这样每一次脉冲都被电路探测到且记为一个计数。

”Inspector”按照您选择的模式来显示读数。

由于放射性的随机性, 仪器检测到的计数每分钟都在变化。

取一段时间内的平均值更加精确, 时间越长越精确。

参见第三章”总量/加权操作模式”的细节。

预防措施要使仪器保持良好状态, 请小心使用和阅读下面内容:1、不要将仪器接触放射性表面或材料, 这样才不会污染”Inspector”。

慈星GE机型全电脑横机使用说明书警告：在操作前请仔细阅读宁波慈星股份有限公司前言首先，感谢您选择了我公司生产的全电脑横编织机，为了让您安全、有效地使用全电脑横编织机，特编写此手册，以供参考。

此操作说明书说明机器的概要,每一个控制指令,保养维修的注意事项；在安装、操作、维护和检查之前请仔细阅读机器制造商的操作说明书和其他辅助文件，只有在您完全理解这一系统并熟悉操作步骤以后才能操作机器。

请保留此说明书以便随时查阅,它将帮助您解决每一个您在操作时可能遇到的问题。

因产品升级、改良等而有可能产生本手册的记载内容与产品相异的情况；另外，本手册的记载内容有时也可能在未经预先通知的情况下更改，恕不另行通知。

最后由于编者水平有限,在本手册的编写过成中难免有错误和疏漏之处,敬请见谅!目录操作篇一安全使用机器说明1 关于机器安装注意事项 (4)2 关于安全操作的注意事项 (6)3 警告标语 (8)4 机器名牌 (10)二机器基本性能描述1 机器外观图 (11)2 机器规格 (12)3 机器噪音 (12)4 机器主要组成部分 (13)5各动作三角的功能与图解 (14)6 A、H、B位置图解 (16)7 选针器与选针脚对应图解 (22)8 针在针床中的排列 (23)9 卷布系统 (23)10 机头移出 (24)11毛刷 (25)12 纱嘴 (26)三、机器的基本操作1 设定花版的起始针 (27)2 穿纱引线 (27)3 夹线 (27)四、各页面操作使用说明A 文件管理 (28)B 花型管理 (33)I 运行 (37)K 连续织造 (48)维护篇一、各画面操作使用说明C 系统参数 (48)D 工作参数 (60)E 机头测试 (65)F 机器测试 (67)G 系统升级 (73)H 帮助 (73)J 关闭电脑 (73)二、维修保养 (75)三、横机电器部分 (84)一安全使用机器说明1 机器安装时的注意事项环境要求：为使机器处于良好的运作状态，请依据下列指示环境安置机台。

S2 RANGER X射线荧光光谱仪用户手册DOC-M80-EXX009 V4 – April 2005Bruker AXS GmbH 北京代表处S2 RANGER X 射线荧光光谱仪目录1 介绍 (4)S2 RANGER X射线荧光光谱仪 (4)EDXRF 能量色散X射线荧光光谱仪的基本原理 (4)2 启动 (5)S2 RANGER 开机 (5)S2 RANGER 关机........................................................................................................ ..7 S2 RANGER 触摸屏 .. (8)用户基本界面 ................................................................................................................ ..9 首次登录......... (10)3 触摸屏界面-总览 (11)进样器屏幕-介绍 (11)进样器屏幕- 一位进样器 (12)进样器屏幕- 28位自动进样器 (13)结果屏幕 (14)图形屏幕 (15)状态屏幕 (16)工具屏幕 (17)4 测量样品 (18)样品环 (18)一位进样器 (18)28位自动进样 (19)选择测量程序 (20)编辑样品编号 (21)开始测量-1位进样器 (22)开始测量-28位自动进样器 (24)测量错误 (25)5 结果数据库 (26)介绍 (26)高级查询 (28)6 深入分析 (29)图形屏幕 (29)对选定范围放大 (31)增加元素谱线 (32)EQUA-ALL 重新评估样品 (32)7 当前状态 (34)8 额外工具 (36)选项页 (36)用户编辑器页 (36)修改密码 (37)增加新用户 (39)修改用户权限.................................................................................... . (39)系统工具 (40)Bruker AXS (41)9 维护 (42)清洁光谱仪系统 (42)真空泵油 (42)打印机换纸 (43)空气过滤器....................................................................................................................... ..4410 故障查找 (45)开始测量 ................................................................................................................... ..45 与样品有关 (46)启动问题 (46)显示和触摸屏 (47)打印机........................................................................................................................... ..47 样品室门....................................................................................................................... ..47 进样 (47)计算机和外围设备 (49)软件问题 (49)与真空有关的问题......................................................................................................... ..50 不能获取数据.. (50)进样器屏幕的错误信息 (51)1 介绍S2 RANGER X射线荧光光谱仪S2 RANGER X射线荧光光谱仪是能量色散型X射线荧光光谱仪（EDXRF）。

INTRODUCTIONThese magnetic resonance (MR) protocols were developed by an expert consensus panel for use on General Electric (GE) MR imaging machines, and were developed for high-end platform scanners with multichannel phased array coils and parallel reconstruction capabilities. The protocols are divided into 3 sections:•Body MR imaging•Body MR angiography•Central nervous system (CNS) MR imagingThe protocol parameters can generally be adapted to work with other software platforms or releases and hardware configurations but may require small modifications that can be made by a knowledgeable and experienced MR technologist. Scan times may increase in some circumstances.These protocols provide field strength–specific parameters for 1.5T and 3T. Attention has also been given to patient preparation, streamlining the exam, and making the best use of contrast material, whether it is a standard gadolinium-based extracellular fluid agent, a high-relaxivity gadolinium-based contrast agent (GBCA), such as MultiHance® (gadobenate dimeglumine [Gd-BOPTA]), or agents with hepatobiliary uptake such as Eovist®(gadoxetic acid) and MultiHance®.Each protocol contains a brief description of patient preparation, special notes on coil choice and placement, suggestions for contrast dose and administration rate, and suggestions concerning timing of fluoroscopic triggering, if appropriate.The consensus panel consisted of the following experts in radiology:Thomas Grist, MD University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin Mark C. DeLano, MD ̶ Michigan State University, Advanced Radiology Services, PC, Grand Rapids, Michigan Scott B. Reeder, MD, PhD ̶ University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin Howard A. Rowley, MD ̶ University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin Steffen Sammet, MD, PhD, DABR, DABMRS, FAMP ̶ The University of Chicago Medical Center, Chicago, Illinois Megan E. Vadnais, BSRT, (R)(MR) ̶ University of Wisconsin School of Medicine and Public Health, Madison, WisconsinDisclaimerThe content and views presented in this educational activity are those of the authors and do not necessarily reflect those of Medical Education Resources, ABC Medical Education, and/or Bracco Diagnostics Inc. The authors have disclosed if there is any discussion of published and/or investigational uses of agents that are not indicated by the US Food and Drug Administration (FDA) in their presentations. The protocols presented here were developed for pediatric and adult patients of average weight.Before prescribing any medicine, primary references and the full prescribing information for each product should be consulted. Any procedures, medications, or other courses of diagnosis or treatment discussed or suggested in this activity should not be used by clinicians without evaluation of their patient’s conditions and possible contraindications or dangers in use, review of any applicable manufacturer’s product information, and comparison with recommendations of other authorities. The information presented in this activity is not meant to serve as a guideline for patient management.Off-Label StatementThis educational activity contains discussion of published and/or investigational uses of agents that are not on-label by the FDA. The opinions expressed in the educational activity are those of the faculty. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications, and warnings. Further, participants should critically appraise the information presented and are encouraged to consult appropriate resources for any product or device mentioned in this activity.MR Protocols for Body MR ImagingContrast timing is extremely important for abdominal MR imaging, particularly for high-quality liver imaging. We recommend the use of fluoro-triggering or “SmartPrep” methods rather than the use of a timing bolus.All body MR imaging protocols presented here were developed by Scott B. Reeder, MD, PhD, Steffen Sammet, MD, PhD, DABR, DABMRS, FAMP, and Megan E. Vadnais, BSRT, (R)(MR) for 1.5T and 3T systems. Specific protocols include:•Abdomen‒ Generic Abdomen Pelvis 1.5T and 3T‒ Appendicitis Noncontrast 1.5T and 3T‒ MR Enterography 1.5T and 3T•Liver‒ Liver/Pancreas Extracellular Agent 1.5T and 3T‒ Liver/Pancreas Hepatobiliary Agent 1.5T and 3T‒ Magnetic Resonance Cholangiopancreatography (MRCP) Noncontrast 1.5T and 3T‒ Diffuse Liver Disease 1.5T and 3T•Pelvis‒ Generic Pelvis 1.5T and 3T‒ Female Pelvis Malignant 1.5T and 3T‒ Female Pelvis Benign 1.5T and 3T‒ Uterine Anomaly 1.5T and 3T‒ Rectal Cancer 1.5T and 3T‒ Perianal Fistula 1.5T and 3T‒ Prostate 1.5T and 3T•Adrenal and Renal‒ Adrenal 1.5T and 3T‒ Renal 1.5T and 3TGeneral Notes•Intravenous access should be obtained with an 18- to 22-gauge needle•We suggest the use of a contrast injector and a saline flush of a minimum of 20 to 30 mL at the same injection rate as the contrast injection (1.5-2.0 mL/sec)•Breath-holding is essential for good image quality for thoracic or abdominal MR imaging. Precontrast scans should be used to ensure that the patient can both breath-hold adequately and understand the instructions. We recommend breath-holding at end-expiration (end tidal volume)•When parallel imaging is used, care must be taken to increase the field of view sufficiently to avoid residual aliasing artifact. This is generally more often a problem for coronal imaging, which may require placing the arms over the head or elevating the arms by the patient’s side•In patients with renal failure, consider using a half-dose (0.05 mmol/kg) of a high-relaxivity Group II contrast agent such as MultiHance® (gadobenate dimeglumine), particularly at 3TMR Protocols for Body MR AngiographyAll protocols should use Fluoro-Triggered (FT) magnetic resonance (MR) angiography fluoroscopic imaging for bolus detection. MR imaging protocols for MR angiography presented here include 1.5T and 3T systems, and were developed by Thomas Grist, MD, and Megan E. Vadnais, BSRT, (R)(MR) for the following procedures:•Cardiac MRA–Cardiac Basic Anatomy and Function 1.5T and 3T–Pulmonary Artery 1.5T and 3T–Pulmonary Vein Mapping 1.5T and 3T•Thoracic MRA–Thoracic Aorta MRA 1.5T and 3T–Gated Thoracic Aorta 1.5T and 3T•Abdominal MRA–Contrast-enhanced MRA Abdomen 1.5T and 3T–Noncontrast-enhanced MRA Abdomen 1.5T and 3T–Thoracoabdominal Aortic Aneurysm MRA 1.5T and 3T•Peripheral MRA–Lower Extremity Contrast-enhanced MR Venography (CE MRV) 1.5T and 3T–Runoff Abdomen to Lower Extremity MRA 1.5T and 3T–Peripheral Runoff Noncontrast 1.5T and 3T–Arteriovenous Malformation (AVM) Evaluation 1.5T and 3TThe rationale for the patient preparation for contrast-enhanced MR angiography is based on a hypothetical generic patient. Individual protocols may include important variations and will be delineated in the specific protocol. General Notes•Intravenous access should be obtained with an 18- to 22-gauge needle, inserted preferably in the antecubital fossa. Right side is preferred (when possible) for thoracic or carotid MR angiography•Use respiratory bellows – gating parameters:–R-R intervals = 2-3–Trigger point = 40%–Trigger window = 30%–Delay = minimum•The basic sequences recommended are intended to achieve both anatomic localization and high-quality anatomic imaging to complement the angiographic sequences that are performed. These include:–3-plane localizer–Coronal single-shot fast spin-echo (FSE)–Axial T2 FSE (respiratory triggered)–3D (three-dimensional) contrast-enhanced MR angiography FT (precontrast-practice breath-hold)–3D contrast-enhanced MR angiography FT (postcontrast)–3D contrast-enhanced MR angiography FT (2nd postcontrast)–Axial fast spoiled gradient-echo postcontrast fat-saturated•A power injector is highly recommended with a minimum of 20- to 30-mL saline flush delivered at the same injection rate as the contrast injection•Breath-holding is critical to good image quality for thoracic or abdominal MR angiography. Precontrast or practice scans help ensure that the patient can both breath-hold adequately and understand the instructions•When parallel imaging is used, care must be taken to not have wraparound artifact on the vascular structures. This generally requires prescribing a large field of view beyond the body wall, and for abdominal imaging, it requires placing the arms over the head or elevating the arms at the patient’s side. When performing the calibration scan, overprescribe by one-fourth the area of interest in the superior and inferior directions to reduce scan cutoff. Calibration scans are performed in the axial plane MR Protocols for Central Nervous System (CNS) MR Imaging Newer hardware and software platforms at both 1.5T and 3T allow efficient protocol options for a wide range of CNS indications. This section suggests multiple consensus methods for optimizing examination of patients undergoing MR imaging in the CNS. Core sequences in each protocol are identified, and their aggregate use constitutes a complete examination for each protocol. Alternative sequences of interest are included for emerging technologies, specific target anatomy, or subspecialty preference.1.5T and 3T CNS MR imaging protocols presented here were developed by Howard A. Rowley, MD, Mark C. DeLano, MD, and Megan E. Vadnais, BSRT, (R)(MR) for the following procedures:•Brain–Routine Adult Brain 1.5T and 3T–Brain Neck Magnetic Resonance Angiography (MRA)/Magnetic Resonance Venography (MRV) 1.5T and 3T –Motion Brain 1.5T and 3T–Routine Stroke Fast 1.5T and 3T–Hyperacute Stroke Brain 1.5T and 3T–Tumor Brain 1.5T and 3T–Multiple Sclerosis Brain 1.5T and 3T–Pediatric Brain 1.5T and 3T–Epilepsy Brain 1.5T and 3T•Specialty Brain–Hydrocephalus Brain 1.5T and 3T–Cerebrospinal Fluid Flow 1.5T and 3T–Pituitary 1.5T and 3T–Cranial Nerves/Internal Auditory Canals 1.5T and 3T–Vessel Wall 1.5T and 3T•Head and Neck–Orbits 1.5T and 3T–Soft Tissue Neck 1.5T and 3T–Sinuses/Face 1.5T and 3T•Spine–Cervical Spine 1.5T and 3T–Lumbar Spine 1.5T and 3T–Thoracic Spine 1.5T and 3T–Routine Total Spine 1.5T and 3T–Focused Total Spine 1.5T and 3T–Specialty Spine 1.5T and 3T–Brachial Plexus 1.5T and 3T–Lumbar Plexus 1.5T and 3TGeneral CNS Protocol Notes•Standard brain. There are multiple approaches to obtain various tissue parameter weightings at both1.5T and 3T, such that “standard” imaging refers more to the general-purpose nature of the protocolrather than the core sequence choices. The core preferences of our consensus panel are indicated within each protocol•T1.Six techniques for obtaining T1-weighting are included: spin echo (SE), fast spin echo (FSE), T1 fluid-attenuated inversion recovery (T1-FLAIR), 3D IR-prepared FSPGR (BRAVO), 3D T1 CUBE, and magnetization transfer (MT)–SE is the T1 reference standard for image contrast at 1.5T, although the other sequences have unique advantages and are included as options. Due to T1 prolongation at 3T and associated loss of gray-white contrast there is no consensus standard for T1-weighting, and many sites use inversion recovery preparation to restore tissue contrast–FSE with its intrinsic magnetization transfer effects results in decreased gray-white contrast but may depict contrast enhancement to better advantage–T1-FLAIR and BRAVO are inversion prepared, facilitating excellent gray-white differentiation but with the potential disadvantage of inconspicuous contrast enhancement due to the marked precontrast hypointensity of many lesions and subsequent isointensity to surrounding brain postcontrast –BRAVO, as a standard 3D sequence, has the key advantage of multiplanar reconstruction capability of the isotropic data sets, and excellent gray-white contrast desirable for most applications –T1 CUBE. This T1-weighted FSE-based volumetric sequence can be performed either before or after contrast. Beyond the usual 3D attributes (such as high resolution and multiplanar reconstructions), it has particular advantages postcontrast, where it provides black blood imaging, supports fat saturation, and shows outstanding tissue contrast for enhancing lesions. T1 CUBE is suitable for routine brain imaging and also orbital, cranial nerve, and vessel wall imaging exams. Many sites now use T1 CUBE as a supplement to postcontrast T1 BRAVO and other sequences–MT is an optional feature that can be added to increase contrast enhancement conspicuity on SE imaging, but at the cost of increased SAR and decreased gray-white distinction•T2. Most sites use FSE sequences rather than SE. PROPELLER is effective for dealing with patient motion, and is the primary FSE sequence used at many sites. Some users add fat saturation to T2 imaging as an option•T2-FLAIR.Improves lesion detection particularly at the brain-CSF interface. When done as the first sequence postinjection, postcontrast T2-FLAIR imaging effectively inserts a time delay for subsequent T1-weighted scans, which improves lesion detection on subsequent T1 imaging. The T2-FLAIR images also have some intrinsic T1 contrast that allows visualization of both edema and enhancement on one sequence for many lesions. Both 2D and 3D T2-FLAIR sequences are commonly performed, with the advantage of multiplanar reconstruction capability and fewer CSF pulsation artifacts of the 3D CUBE •Susceptibility. Due to the reduced susceptibility weighting of FSE methods, a T2*-GRE sequence can be added as an option to detect blood products and calcium. The SWAN sequence has been shown to more sensitively detect subtle areas of blood and calcium and has become a common protocol choice•Diffusion. Most brain protocols include a diffusion-weighted imaging sequence that is useful for stroke, infection, and tumor imaging. Apparent diffusion coefficient maps should be included to assess T2 shine-through. In areas near the skull base or orbits, PROPELLER DWI can be a good option to reduce signal pile-up and geometric distortion artifacts•Perfusion. Dynamic susceptibility contrast, perfusion-weighted imaging is becoming increasingly important and can provide clinically significant information regarding blood volume and/or transit time for both stroke and tumor imaging. Arterial spin labeling is also an option for assessing cerebral blood flow at 3T, but must be obtained precontrast•Contrast. The protocols presented here do not list separate imaging sequences for postcontrast imaging; rather, the T1-weighted sequence of choice is typically repeated after contrast agent administration. Most neurologic sequences with contrast are acquired with at least a 3- to 5-minute delay after injection to optimize visualization of disorders of the blood-brain barrier. Some protocols use more than one sequence “family” postcontrast, such as T2-FLAIR, T1-BRAVO, and T1-CUBE Fat Sat due to their complementary information. Many centers prefer routinely acquiring such volumetric series postcontrast to facilitate retrospective multiplanar reconstructions, treatment planning, and neuronavigation applications. T2-FLAIR is an excellent complement to T1 series, and may be done first postcontrast to intentionally provide a time delay before the T1 series are acquired. The method of injection is not important in these cases, and manual injection is typically used. However, power injectors are needed for contrast-enhanced MR angiography and perfusion imaging. Rates of injection vary, but 4 to 5 mL/sec is standard for perfusion, and 1.5 to 2 mL/sec is used for MR angiography. Dosing is weight based and at 0.1 mmol/kg for most protocols aimed at standard extracellular fluid distribution. The dose for an individual injection may be lower for first-pass MRA or perfusion exams, where a split-dose protocol can often be used, keeping overall dose within the standard 0.1 mmol/kg guideline. The ACR has recommended that the lowest dose feasible be used for diagnostic purposes. Because standard dosing recommendations are mostly influenced by lean body mass, and ECF volume in fatty tissues is low, some sites cap the upper limit of contrast for heavier adults at 20 mL total, especially when a high-relaxivity agent is being used.A useful contrast dose calculator (“GadCalc”) is available at https:///contrastCorner/ gadcalc.php and is also available for free download at the Apple and Droid App Stores.。

,★S L A R AO RN T ★M T EO GY I N★★Y★★Soma Technology Inc. • 166 Highland Park Drive • Bloomfield, CT 06002 • USATypicalManufacturer’s Imagepositioning and facilitate bedside studies, while the maintenance-free battery produces up to 50 high-quality exposures with a single charge.• D ual drive motors and oversizecasters facilitate movement; even in taxing environments.GE AMX IV PlusSpecificationsDimensions• H eight: 70 inches (1778 mm) for Models 2169360−6, 2236420−6, and 2275938−6, −12,−13, −14, −15; all others 76 inches (1930 mm).• W idth: 25−3/16 inches (640 mm)• Length: 45−3/8 inches (1153 mm)• Weight: 1080 pounds (490 kg) Environmental Limits1. Operating temperature range: 59 to 100 Degrees Fahrenheit (15 to 38 Degrees Celsius) at 80% non−condensing humidity.2. Storage temperature range −40 to +140 Degrees Fahrenheit (−40 to +60 Degrees Celsius)3. Maximum operating altitude: 8,000 feet (2440 meters).Battery Specifications• N ine 12.9 volt batteries connected in series provide approximately 116 volts at full charge. Battery CapacityThe AMX−4+ battery capacity can be measured by one of the following five methods. All capacities are measured after the AMX−4+ has been charged to the “CHARGE COMPLETE” state. Available capacity as stated applies only to new battery sets free of defective cells. Capacity may decrease as the battery nears the end of its useful life. Method 1: ExamsThe AMX−4+ batteries will provide capacity for more than 20 typical EXAMs. An “EXAM” is defined as:− Two 70 kVp, 10 mAs X−ray exposures including: > 7 seconds of prep (rotor and filament drive)> 25 seconds of field light− 5 minutes of drive time− 9 minutes of idle timeThe formula in the “VARIED USAGE” section can be used to determine the number of total EXAMs available for usage regimes different from this typical case.Method 2: X−ray ExposuresThe AMX−4+ batteries will provide enough capacity for 165 or more 100 kVp, 100 mAs X−ray exposures. Each exposure includes 4 seconds of prep (rotor and filament drive) time and 30 seconds of idle time for battery recovery. This number may be reduced by additional idle time required for X−ray tube cooling.Method 3: Drive TimeThe AMX−4+ batteries will provide enough capacity for 140 minutes of continuous drive time. This time is typically independent of driving conditions, however, it may be reduced if a significant portion of the drive is on carpeting or up ramps.Method 4: Idle TimeThe AMX−4+ batteries will provide capacity for 23.3 hours of continuous idle time. “Idle” is the time when the AMX−4+ is ON but not being used.Method 5: Varied UsageFor varied usage, the AMX−4+ batteries will provide capacity according to the following formula:{ (idle time in minutes ) _ 3} +{ (drive time in minutes ) _ 30} +{ ( field light time in minutes ) _ 25 } +{ ( prep time in minutes ) _ 30} +{ ( exposure energy* ) _ 2.17} = 4200*exposure energy = cumulative { ( kVp _ mAs ) _ 1000 }EXAMPLE: Assume one desires to estimate the number exams available from an AMX−4+ used in a particular pediatric ward. It is determined that a typical exam for this case is comprised of:− Two 70 kVp, 0.8 mAs X−ray exposures including: > 3 seconds of prep> 15 seconds of field light− 1 minute of drive− 5 minutes of idleUsing the above formula we can estimate the number of exams as follows:each EXAM uses { (5 idle minutes ) _ 3} + { (1 drive minutes ) _ 30} +2 x [ { (15 _ 60 field light minutes ) _ 25} + { (3 _ 60 prep minutes ) _ 30} +{ ( (70 kVp _ 0.8 mAs ) _ 1000 ) _ 2.17} ] = 60.7 therefore the total number of typical EXAMs available is: 4200 _ 60.7 = 69Movements• T ube vertical movement measured at the focal spot (arm extended):a. R ange at least 46.5 inches (1181 mm)for Models 2169360−6, 2236420−6 and2275938−6, −12, −13, −14, −15; all others atleast 52.5 inches (1334 mm).b. L owest position 26.1 inches (663 mm) max.from floor.c. H ighest position 72.6 inches (1844 mm) min.from floor for Models 2169360−6, 2236420−6and 2275938−6, −12, −13, −14, −15; allothers 78.6 inches (1996 mm) min. from floor.• T he horizontal movement measured at the focal spot relative to column face is 24 inches (610 mm) minimum, to 40 inches (1016 mm) maximum.• T ube Column rotation measured from horizontal arm latch is +/−270 degrees.• T ube and yoke rotation around Horizontal Arm measured from tube port down position:a. Range 360 degrees;b. D etent locations0, +/−90, and +/−180degrees.• T ube Trunnion rotation measured from tube port down position:a. Range 120 degrees;b. Forward 110 degrees;c. Backward 10 degrees;d. Detent 0 degrees, and 90 degrees.• C ollimator Rotation measured from the front of the collimator with the tube port facing down:a. Range 180 degrees;b. Right 90 degrees;c. Left 90 degrees;d. Detent 0 and 90 degrees.Moving Efforts• M oving efforts with locks mechanically off (that is, energized electrically):a. V ertical tube motion: 12 pounds (53 Newtons)maximum, measured going up or down; 15pounds (67 Newtons), measured over last 4inches (102 mm) of travel.b. H orizontal tube motion: 14 pounds (62.3Newtons) maximum, measured going in orout.c. T ube Column rotation: 15 pound−feet (20.3Newton−meters) maximum. d. T ube and yoke angulation around horizontalArm: 10 to 20 pound−feet (14 to 27 Newton−meters) to disengage from detent, 6 to 18pound−feet (8 to 24 Newton−meters) to rotatebetween detents.e. T ube rotation in yoke: 7 to 30 pound−feet(9.5 to 41 Newton−meters) to disengage fromdetent, 4 to 20 pound−feet (5 to 27 Newton−meters) to rotate between detents.• M oving efforts with locks mechanically on (that is, not energized electrically):a. V ertical tube motion: 15 pounds (67 Newtons)minimum, 32 pounds (142 Newtons)maximum; measured going up or down.b. H orizontal tube motion: 10 pounds (44.5Newtons) minimum, 28 pounds (125Newtons) maximum; measured going in orout.c. T ube Column rotation: 25 to 40 pound−feet(34 to 54 Newton−meters).Drive SpeedThere are two speeds: Drive Speed with the horizontal Tube Arm secured for transport, and Maneuvering Speed with the horizontal Tube Arm removed from the Transport Latch.Drive speed is measured on a smooth, hard and level surface. Speed will be reduced by inclines, carpeted or soft surfaces.• D rive Speed is 264 feet (6705 mm) per minute +/− 25%;• M aneuvering Speed is 30% to 60% of drive speed.Tube Unit RatingsTube Housing and Insert Specifications are given in Direction 46−017226, Tube Ratings, HRT 50 and 60 Hz., or in 2236721−100, Product Data Sheet Maxiray 75 TH 11 X−ray Tube. Also, refer to note on maximum allowable kVp and mAs ratings in 2166913−1EN AMX−4+ Operating Manual.cont’dGenerator Operator IndicatorsCheck for proper operation of tones or buzzers and labels as required by regulations. Reference “Generator Operator Indicators” in Tab 3 of Direction 46−013894, System Field Test for HHS.1. X−ray on indicator lights during an exposure.2. Audible tone occurs during exposure.3. A udible tone occurs with safety timedtermination of AEC exposures.4. S afety timed termination of AEC exposuresrequires resetting before taking anotherexposure.5. X−ray warning label is legible.kVp Accuracy1. R ise time of the kVp wave form from 10% to90% of the maximum kVp is 1.2 millisecondor less.2. F all time of the kVp wave form from 90% ofthe maximum kV to 20 kV is 2.5 millisecondsor less.3. A ccuracy of the kVp wave form to selectedkVp is +/− 8% of the value displayed on theoperator panel for the first 20 ms and +/− 5%after 20 ms. Accuracy applies within the rangeof the bar graph battery charge indicator. Note: These specifications do not apply to switching transients which occur during the first millisecond and the last millisecond of an exposure. Test MethodUse a Keithley Non−Invasive kVp Divider (Model 35080A with Deviation 535 or Model 35080B, both using Mobile Filter Pack Plus 37946C and optional Low Range Filter Pack 38237C). A Triad 35050A Dosimeter can also be used to provide digital readout of corrected kVp values. No other substitutions for non−invasive kVp Dividers are approved!The set−up procedure and linear correction curves (non−Triad systems) for using the Keithley divider are covered in Section 3 of Direction 46−017561 HHS Control and Tube Assembly Tests and Keithley’s Operation and Maintenance manuals. AlternateUse the GE C1515A Invasive Bleeder. If this method is used, the unit should be calibrated and verified with this meter.Note:I f an attempt is made to verify a unitcalibrated with a C1515A bleeder with eitherof the above Keithley Non−Invasive dividers,kVp readings will read 5−7 kVp higher thanwhen read with the C1515A. This is dueto impedance changes in the high voltagecircuit with the bleeder removed from thecircuit and due to frequency compensationerrors present using the C1515A dividerwith the AMX−4+ waveform. The procedurefor connecting the C1515A High Voltagedivider is covered in Direction 46−013288Bleeder, High−Voltage Dual Type T8005Gand C1515A Connection ... Applications, andDirection 2196272−100, High Voltage CableInstallation and Troubleshooting Procedures. Make exposures and calculations as described in “Technique Accuracy − kV/mA” in Tab 3 of Direction 46−013894 System Field Test for HHS. Metering AccuracyAccuracy of mAs is the integral of X−ray tube emission current between the time at which the kV wave form reaches 75% of the indicated peak value at the beginning of an exposure and the time at which it falls to 75% of the indicated peak value when the exposure is terminated. Actual mAs shall match selected mAs within +/−10%. Preferred Test MethodThis is an indirect procedure which verifies accuracy of the mAs metering circuitry and mAs calibration. Measuring mAs Metering Accuracy is done by injecting 100 mA into the mAs integrating circuit and comparing the response with a meter installed in the circuit. Reference Direction 2173223−100, AMX−4+ Calibration − familiarity with this direction is assumed. Also reference “Technique Accuracy − mAs” in Tab 3 of Direction 46−013894, System Field Test for HHS.1. Enter mAs calibration and install meter.2. A t the prompt ENTER VALUE compare meterreading with displayed reading.3. C orrect reading to include meter accuracybefore comparing with requirements. Note:A ccuracy of mA reading at the approximate 100 mA test condition is _ 0.1 mA. Meteraccuracy must be added to the mA readingbefore making judgment on the final reading.ReproducibilityThe coefficient of variation for radiation output is less than 0.045 for successive exposures having constant technique factors. Coefficient of variation is measured and calculated as described in “Reproducibility of Exposure” in Tab 3 of Direction 46−013894, System Field Test for HHS. This applies to all units for non−AEC mode − reference the procedure “for exposures made without the use of A.E.C.” For units equipped with Mobil−AID, also reference the procedure “for exposures made with an A.E.C.”Beam QualityThe half−value layer of the useful beam at 80 kVp shall not be less than 2.5 millimeters of aluminum. This requirement differs slightly from and supersedes NCRP 33. The specific test point is at 80 kVp requiring a half value layer of 2.5 millimeters of aluminum. This applies to systems manufactured before June 10th, 2006. For systems manufactured on or after June 10th, 2006 the following new regulation applies; The half−value layer of the useful beam at 80 kVp shall not be less than 2.9 millimeters of aluminum. The specific test point is at 80 kVp requiring a half value layer of 2.9 millimeters of aluminum. Reference the System Rating Plate to determine manufactured date. Note: The rating plate shows month and year only. For systems manufactured during June, 2006 you must verify the manufactured date in the GE GIB database. Contact your local Service Representative for assistance.Test MethodThe procedure for measuring Beam Quality is presented in “Beam Quality (Half Value Layer)” in Tab 4 of Direction 46−013894 System Field Test for HHS. The following noted exceptions to that procedure apply for the AMX−4+:1. S elect initial technique factors of 80 kVp and20 to 48 mAs.2. W hen making an exposure without theabsorber, adjust mAs so that the radiationmeter reading contains three significant digits.3. U se an AMX−4 absorber 46−173632G2 in thecollimator rails.> F or systems manufactured On or AfterJune 10th, 2006 add additional aluminumfiltration from the HVL Attenuator set part #46−194427P274 found in the HHS Kit part #46−303879G1 or 46−303879G2. Total testfiltration = 3.1 mm of Aluminum. Affix theseplates to the AMX−4 absorber with tape.Ensure the tape is not in the usable beampath.> F or tube changes there is an additional 1.2 mm Aluminum cup added to the X−RayTube. This cup snaps onto the collimatormounting plate and is easily identified sincethe tube glass port is not visible. This cupmust be present and retained for systemsmanufactured On or After June 10th,2006. Likewise this cup if provided with thereplacement tube it must be removed forsystems manufactured before June 10th,2006. Reference the system rating plateaffixed to the AMX unit.cont’d。