The invention discloses an article machine which comprises a radiant chamber (201), a radiant source arranged in the radiant chamber (201), radiation-resistant long curtains (203) arranged at the entrance and exit of the radiant chamber (201) and a conveyor belt (204) used for conveying articles to be tested, wherein, at least one radiation-resistant short curtain (203') is also arranged on the radiant chamber (201), the length of the short curtain (203') is less than that of the long curtains (203). By additionally arranging the radiation-resistant short curtain (203'), when the radiation-resistant long curtains (203) are lifted, the short curtain (203') can shield large quantity of rays. Therefore, the harm dangerous caused by leaked rays to human body can be avoided.