A novel type of resistive Micromegas combining a Bulk mesh and a resistive pad board is presented. Readout pads are covered by a thin insulating layer with a top resistive coating segmented into resistive pads. Readout and resistive pads are electrically connected by means of planar resistors embedded in the insulator, enabling fast clearance of the avalanche charge from the resistive surface. The maximum gas gain achieved by these resistive detectors is similar to that of non-resistive Micromegas. A possible saturation of the gain for large energy deposits in the gas was investigated by means of ⁵⁵Fe quanta and electromagnetic showers in the 30–200 GeV energy range, but no significant deviation from a proportional response was found. With a suitable choice of the resistance, these detectors demonstrate negligible gain drop and no sparking up to X-ray fluxes of $\sim$  1 MHz / mm² which constitutes a major improvement over non-resistive Micromegas. Spark suppression was also verified in a hadron beam for prototypes with a pad resistance as low as 40 k$\mathrm{\Omega }$ or above. Passive protections of the front-end electronics against sparks (diodes on a printed circuit board) are therefore not required for these resistive detectors.

提出了一种新型的电阻性Micromegas，其结合了块状网格和电阻垫板。读出焊盘​​被薄绝缘层覆盖，该绝缘层具有分成电阻焊盘的顶部电阻涂层。读数垫和电阻垫通过嵌入绝缘体中的平面电阻器进行电连接，从而可以从电阻表面快速清除雪崩电荷。这些电阻式检测器获得的最大气体增益类似于非电阻式Micromega。通过⁵⁵ Fe量子和30–200范围内的电磁阵雨研究了气体中大量能量沉积的增益可能的饱和 GeV能量范围，但未发现与比例响应显着偏离。与电阻的适当选择，这些检测器证实可忽略的增益下降和无火花高达透视通量$〜$  1  MHz  /  mm ²构成了相对于非电阻性Micromega的重大改进。还针对具有40  k焊盘电阻的原型在强子束中验证了火花抑制$\mathrm{\Omega }$或以上。因此，对于这些电阻检测器，不需要前端电子装置的被动保护以防产生火花（印刷电路板上的二极管）。